Precision, light weight, and dedicated chambering matter when you want an AR-style upper built specifically for small-game hunting, target work, or low-recoil defensive training. A purpose-built 17 HMR upper delivers flatter trajectories and lower recoil while preserving AR ergonomics for shooters who value follow-up speed and accuracy.
ALEXANDER ARMS UST17 UPPER RECEIVER is built around an 18″ barrel with a 1:9 twist rate, 1/2-28RH threading, and includes an A2 flash hider. The unit uses a blowback operating system and ships in black with optional Cerakote upgrades available. It arrives with two 10-round magazines, a parts kit for lower conversion, and tips the scale at 4.5 pounds. Shop this product
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Key features and what they mean on the range
Barrel, twist and muzzle options
The 18″ barrel paired with a 1:9 twist rate is optimized for stabilizing standard 17 HMR projectiles, improving downrange consistency for 50–150 yard work. Threading at 1/2-28RH accepts a broad range of muzzle devices and suppressors; the included A2 flash hider provides a low-profile, reliable starting point.
Blowback system and weight
The blowback operating system is mechanically simple and reliable for rimfire rounds, reducing parts complexity and maintenance. At 4.5 pounds, the upper keeps overall rifle weight low for carry and extended range sessions without compromising rigidity for accuracy.
Included accessories
Two 10-round magazines and a parts kit for lower conversion make this upper a practical plug-and-play option for shooters looking to convert an existing AR lower to 17 HMR quickly. Optional Cerakote finishes allow owners to tailor corrosion resistance and aesthetics.
For buyers considering cost versus capability, the listed price of $989.99 positions this upper as a premium, purpose-built option within the Upper Receivers category from Alexander Arms—an established name known for rimfire expertise and precision engineering. View product details and pricing
Who should consider this upper
Install this upper if you need a dedicated 17 HMR platform for varmint control, precision rimfire training, or lightweight defensive drills. The combination of an optimized 18″ barrel, user-friendly blowback operation, and included conversion kit makes it a focused solution. Check current availability and purchase options directly on the shop page where clicking takes you to the product listing and retailer buy flow. Check availability
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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